公开(公告)号：US06699194B1

公开(公告)日：2004-03-02

申请号：US09547588

申请日：2000-04-11

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B502

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

公开(公告)号：US07499741B2

公开(公告)日：2009-03-03

申请号：US10839276

申请日：2004-05-04

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B5/1455 ,  A61B5/024

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

公开(公告)号：US20080036752A1

公开(公告)日：2008-02-14

申请号：US11842128

申请日：2007-08-20

Applicant: Mohamed Diab ,  Rex McCarthy

Inventor： Mohamed Diab ,  Rex McCarthy

IPC: G09G5/00

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

Abstract translation: 一种用于分析被建模为包含期望和不期望的部分（例如噪声，FM和AM调制）的两个测量信号的方法和装置。 系数根据根据本发明定义的模型关联两个信号。 在一个实施例中，使用变换来评估两个测量信号的比率以找到适当的系数。 然后将测量的信号馈送到信号洗涤器中，该信号洗涤器使用系数去除不需要的部分。 信号擦除在时域或频域中进行。 该方法和装置对于血氧饱和度测量和脉动测量是特别有利的。 在另一个实施例中，通过将一组规则应用于经擦除的信号的频谱变换来获得脉冲发生器的估计。 在另一个实施例中，通过将擦除的信号从第一光谱域变换成第二光谱域来获得脉冲发生器的估计。 通过识别第二个光谱域中最大的光谱峰值来发现脉冲发生器。

公开(公告)号：US20070225581A1

公开(公告)日：2007-09-27

申请号：US11754238

申请日：2007-05-25

Applicant: Mohamed Diab ,  Esmaiel Kiani-Azarbayjany ,  Ibrahim Elfadel ,  Rex McCarthy ,  Walter Weber ,  Robert Smith

Inventor： Mohamed Diab ,  Esmaiel Kiani-Azarbayjany ,  Ibrahim Elfadel ,  Rex McCarthy ,  Walter Weber ,  Robert Smith

IPC: A61B5/145 ,  G06F17/00

CPC classification number: A61B5/14551 ,  A61B5/021 ,  A61B5/02154 ,  A61B5/024 ,  A61B5/029 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0816 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4821 ,  A61B5/7203 ,  A61B5/7207 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/7239 ,  A61B5/7253 ,  A61B5/7257 ,  A61B5/726 ,  A61B6/00 ,  A61B8/00 ,  A61B8/5276 ,  G01N2021/3144 ,  G06K9/0051 ,  H04B1/123

Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.

Abstract translation: 本发明涉及一种用于分析测量信号的方法和装置，包括在计算被监测患者的生理参数期间确定测量信号中的相关性的测量。 关于血液测碘法测量，特别详细地描述了本发明的用途。

公开(公告)号：US20060217609A1

公开(公告)日：2006-09-28

申请号：US11432278

申请日：2006-05-11

Applicant: Mohamed Diab ,  Esmaiel Kiani-Azarbayjany ,  Ibrahim Elfadel ,  Rex McCarthy ,  Walter Weber ,  Robert Smith

Inventor： Mohamed Diab ,  Esmaiel Kiani-Azarbayjany ,  Ibrahim Elfadel ,  Rex McCarthy ,  Walter Weber ,  Robert Smith

IPC: A61B5/00

CPC classification number: A61B5/14551 ,  A61B5/021 ,  A61B5/02154 ,  A61B5/024 ,  A61B5/029 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0816 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4821 ,  A61B5/7203 ,  A61B5/7207 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/7239 ,  A61B5/7253 ,  A61B5/7257 ,  A61B5/726 ,  A61B6/00 ,  A61B8/00 ,  A61B8/5276 ,  G01N2021/3144 ,  G06K9/0051 ,  H04B1/123

Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.

公开(公告)号：US08190227B2

公开(公告)日：2012-05-29

申请号：US12368222

申请日：2009-02-09

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B5/1455 ,  A61B5/024

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

公开(公告)号：US20090209835A1

公开(公告)日：2009-08-20

申请号：US12368222

申请日：2009-02-09

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B5/1455

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

Abstract translation: 一种用于分析被建模为包含期望和不期望的部分（例如噪声，FM和AM调制）的两个测量信号的方法和装置。 系数根据根据本发明定义的模型关联两个信号。 在一个实施例中，使用变换来评估两个测量信号的比率以找到适当的系数。 然后将测量的信号馈送到信号洗涤器中，该信号洗涤器使用系数去除不需要的部分。 信号擦除在时域或频域中进行。 该方法和装置对于血氧饱和度测量和脉动测量是特别有利的。 在另一个实施例中，通过将一组规则应用于经擦除的信号的频谱变换来获得脉冲发生器的估计。 在另一个实施例中，通过将擦除的信号从第一光谱域变换成第二光谱域来获得脉冲发生器的估计。 通过识别第二个光谱域中最大的光谱峰值来发现脉冲发生器。

公开(公告)号：US07489958B2

公开(公告)日：2009-02-10

申请号：US11417858

申请日：2006-05-03

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B5/1455 ,  A61B5/02

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

Abstract translation: 一种用于分析被建模为包含期望和不期望的部分（例如噪声，FM和AM调制）的两个测量信号的方法和装置。 系数根据根据本发明定义的模型关联两个信号。 在一个实施例中，使用变换来评估两个测量信号的比率以找到适当的系数。 然后将测量的信号馈送到信号洗涤器中，该信号洗涤器使用系数去除不需要的部分。 信号擦除在时域或频域中进行。 该方法和装置对于血氧饱和度测量和脉动测量是特别有利的。 在另一个实施例中，通过将一组规则应用于经擦除的信号的频谱变换来获得脉冲发生器的估计。 在另一个实施例中，通过将擦除的信号从第一光谱域变换成第二光谱域来获得脉冲发生器的估计。 通过识别第二个光谱域中最大的光谱峰值来发现脉冲发生器。

公开(公告)号：US07471971B2

公开(公告)日：2008-12-30

申请号：US10791683

申请日：2004-03-02

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B5/1455 ,  A61B5/02

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

Abstract translation: 一种用于分析被建模为包含期望和不期望的部分（例如噪声，FM和AM调制）的两个测量信号的方法和装置。 系数根据根据本发明定义的模型关联两个信号。 在一个实施例中，使用变换来评估两个测量信号的比率以找到适当的系数。 然后将测量的信号馈送到信号洗涤器中，该信号洗涤器使用系数去除不需要的部分。 信号擦除在时域或频域中进行。 该方法和装置对于血氧饱和度测量和脉动测量是特别有利的。 在另一个实施例中，通过将一组规则应用于经擦除的信号的频谱变换来获得脉冲发生器的估计。 在另一个实施例中，通过将擦除的信号从第一光谱域变换成第二光谱域来获得脉冲发生器的估计。 通过识别第二个光谱域中最大的光谱峰值来发现脉冲发生器。

公开(公告)号：US6067462A

公开(公告)日：2000-05-23

申请号：US081539

申请日：1998-05-19

Applicant: Mohamed K. Diab ,  Rex McCarthy

Inventor： Mohamed K. Diab ,  Rex McCarthy

IPC: A61B5/00 ,  A61B5/02 ,  A61B5/024 ,  A61B5/04

CPC classification number: A61B5/14552 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/14551 ,  A61B5/7203 ,  A61B5/7214 ,  G06K9/0051 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/7257 ,  A61B5/726

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.